"All-in-One" test kit, for servicemen and homeowners, free, total and combined CI, Cyanuric Acid, pH, Acid Demand and Total Alkalinity, Lucite test cell, 50 each DPD No.1 and No. 3 tablets, 10 Cyanuric acid tablets, 1 oz. No. 2, No. 3, 1/2 oz. No. 4, No. 5, water test booklet, red display box,"All-in-One" test kit, for servicemen and homeowners, free, total and combined CI, Cyanuric Acid, pH, Acid Demand and Total Alkalinity, Lucite test cell, 50 each DPD No.1 and No. 3 tablets, 10 Cyanuric acid tablets, 1 oz. No. 2, No. 3, 1/2 oz. No. 4, No. 5, water test booklet, red display box